(2639) Planman
Asteroid (2639) Planman |
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Properties of the orbit ( animation ) | |
Orbit type | Main belt asteroid |
Major semi-axis | 2.4462 AU |
eccentricity | 0.1913 |
Perihelion - aphelion | 1.9783 AU - 2.9141 AU |
Inclination of the orbit plane | 9.6634 ° |
Sidereal period | 3,826 a |
Mean orbital velocity | 19.04 km / s |
Physical Properties | |
Medium diameter | ? km |
Albedo | ? |
Rotation period | ? H |
Absolute brightness | 13.1 mag |
Spectral class | ? |
history | |
Explorer | Yrjö Väisälä |
Date of discovery | April 9, 1940 |
Another name | 1940 GN, 1959 GL, 1948 NB |
Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. |
(2639) Planman is an asteroid of the main belt , which on 9 April 1940 by the Finnish astronomer Yrjö Väisälä at Turku was discovered.
The name of the asteroid was chosen in honor of the Swedish astronomer Anders Planman .